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Finding the Fourth Proportional to 447,666.29, 618,007.70 and 345,462.11

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Solution

The fourth proportional to 447,666.29, 618,007.70 and 345,462.11 is: 476,913.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,666.29 : 618,007.70 = 345,462.11 : x
  2. Step 2: Convert to fraction form
    447,666.29/618,007.70 = 345,462.11/x
  3. Step 3: Cross multiply
    447,666.29x = 618,007.70 × 345,462.11
  4. Step 4: Simplify right side
    447,666.29x = 213,498,244,038.25
  5. Step 5: Solve for x
    x = 213,498,244,038.25/447,666.29
  6. Step 6: Final answer
    x = 476,913.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.